Check out the Microsoft KnowledgeBase article FIX: Error Message "Report Width Is Larger Than the Paper Width" When Showing Data Report in Landscape
When using the Show method of Data
Report to preview the report, the page
orientation defaults to the default
printer settings on the local
computer. Therefore, if the
orientation of the default printer
settings is set to Portrait of
standard Letter paper and your report
width is more than 8.5 inches wide,
the following error occurs: Report
Width is Larger than the Paper Width.
The solution appears to be setting Orientation
before using the Data Report. Change DataReport1
to the name of your data report.
DataReport1.Orientation = rptOrientLandscape
DataReport1.Show
EDIT Another suggestion: Microsoft offer a free DLL that allows you to change the default settings for the printer. You could try using that free DLL in your project, then do something like this code below before using the data report. Microsoft say "this DLL is particularly useful when dealing with the Data Report, which reads the default printer orientation prior to displaying or printing a report."
Set obj = New PrinterControl
obj.ChngOrientationLandscape